﻿using System;

class Test
{
    public static void Main()
    {
        Person min4o = new Person("Marin");
        Person pesho = new Person("Petur", 23);
        Person bobi = new Person("Bojidar", null);
        Console.WriteLine(min4o);
        Console.WriteLine(pesho);
        Console.WriteLine(bobi);
    }
}

